Cancelled comics that resumed publication and lasted another year or more
Comics I can think of, off the top of my head, that were cancelled at one time and resumed numbering when revived, AND lasted longer than 12 issues afterwards...
Green Lantern - cancelled with #89, #90 resumed four years later and lasted for another 135 issues.
All-Star Comics - cancelled with #57 (with All-Star Western taking over), resumed 25 years later with #58 and lasted for another 16 issues.
Adventure Comics - cancelled with #503, resumed with #1 (but the variant cover had it as #504) 26 years later and lasted for 26 issues.
Honorable mention:
Teen Titans - cancelled with #43, resumed with #44 four years later and lasted 10 more issues before getting re-cancelled.